Draft-rigging.



G. H. GILMAN 6L H. M. ROBERTSON.

DRAFT RlGGING.

APPLICATION FILED DBo.21,1911.

Patented Sept. 16, 191'3.

n sfra'rns rarnnr onirica.

GEORGE H. GILMAN AND HENRY M. ROBERTSON, OF ST. P'AL. M-INNESOTA.

DRAFT-RJ'GGING.

S'peclcation of Letters Estant.

Patented sept. 1e, 191s.

application flledlcc'ember 2L, 1911. Serial No. 681,196.

ple and eflicient auxiliary or safety draft connection or attachment therefor.

To the above ends, generally stated, the

invention consists of the novel devices and motivations of devices hereinafter described and defined in the claims.

In the standard Master Car Builders type of draft rigging, the coupler draft bar is, as is well known, provided with a draft yoke or stirrup secured thereto usually by heavy rivets.

One of the great causes of accidents and of the disablement of cars is the tearing loose of the draft yoke or stirrup due, some times, to the breaking of the said draft yoke or stirrup but more frequently to shearing of the rivets which secure it to the coupler draft bar.

Our invention provides an auxiliary device which prevents the coupler draft bar from being torn loose when the draft yoke is broken or disabled, as stated.

The invention, in its preferred form, is illustrated in the accompanying drawings wherein like characters indicate like parts throughout theyseveral views.

Referring to the drawings: Figure l is a view chiefly in vertical section, but with some parts in full elevation and with some parts broken away showing our invention incorporated in or used in connection with a draft rigging of the Master Car Builders type; Fig. :2 is a view partly in plan and partly in horizontal sectwn, and with some parts broken away, showing the draft rigging illustrated in Fig. 1, the platform of the car being removed; and Fig. 3 is a perspective view showing portions of the draft riggin A Uf t ie parts of the car structure, the numeral 1 indicates the car platform, and the numeral 2 the draft sills.V

The numeral 3 indicaties standard coupler having a shank or d'rait bar 4 to which the usual draft yoke 5 is shown as secured by the customary rivets (l.

The numeral 7 indicates draft pla-tes of the usual or any suitable construction which are set into and rigidly secured to the sills 9., and' are rovieled with front. and' rear draft lugs 8 tiat coperatie with the customary y front and rear followers 9. The usual springs or compressing resisting members 1G' are nnter osed between the followers 9'.

n accordance with the invention, one of the followers, preferably the front follower', is provided with "forwardly projecting arms l11 that embrace the sides of the coupler draft bar or shank 4 and are provided with elongated slots 4l2. The draft bar or shank fl is provdedwith projections, referably afforded by transversely extended orizontal key 13 and the ends of which project through and work in the said slots 12.

The slots 12 are of suclnlength that under movements imparted to the draft bar 4 by ordinary bumping and draft strains, the keys or lugs 13 will move freely in the slots 12 of the arms 11 and the draft bar and yoke will be permitted to operate in the customary way upon the spring pressed follower 9. If, however, the yoke or stirrup be torn loose from the draft bar, the lugs 13 under draft strains will move to the front end extremities of the slots 12, and Will then hold the said draft bar operatively coupled t'o the front follower J and through the latter to the front draft lugs 8 so that the draft rigging is still operative. In this contingency, the draft rigging under bumping strains will operate just as it does when the draft yoke. is operatively connected because, as is well known, under bumping strains the draft bar or shank l presses directly against the front follower and transmits the buinp ing shock through the springs l0.

The improved safely or auxiliary draft device described may also be employed and so arranged as to be drawn into action under extreme movements of the draft bar, even when the draft yoke or stirrup is intact and applied and oineratively connected to the said draft bar. lVth this improved arrangement of draft rigging, means is always ail`orded for taking the cnr to its destination.` 1f the yoke is broken, the auxiliary connection is operative; and if, for instance, the key of the auxiliary connection vshould be broken, the yoke and otherc-Onfn'ections will .b e operative for the above pur- `pose.

` between the said key and the rivets 6 ofthe yoke 5.

What we claim is: 1. In a draft rigging, the Combination Withspring fpressed followers,vcoperating draft lugs anda draft bar having a yoke embracing said followers said yoke being secured to the draft ba1',of slotted arms located on opnosite sides-of said draft bar .and connected to the outer follower, and projections :on said draft bar Working with play within the slotsofsaid. arms, substantially as describe 2. In a railway draft rigging in combinatended arms, said arms being keyed to the draw bar and being slotted to,permit forward movement of the draw bar relative to the front follower.

3. In a draft rigging-in combinationgadraw bar, a yoke secured thereto, acompression resist-ing member, a key and followers, the front follower being provided withforwardly extended slotted arms, the'key passing through said arms` and loosely engaging the same to the draw bar.l y

In testimony whereof we affix our signaf tures in nresence of two Witnesses.

- GEGRGE H. GILMAN.

HENRY M. ROBERTSON. lVitnesses v Hanny DL'KILGOBE,

F. D. MERCHANT. 

